Question: Who is the {Wikidata property for astronomical objects} for {subject item of this property} of {parallax
Paraphrase: Who is the {Wikidata property for cosmic objects} for {subject thing of this property} of {parallax
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P1629 wd:Q165074 . ?sbj wdt:P31 wd:Q21451142 } 
Answer: P2214